EP0345394B1 - Child resistant hinge top closure - Google Patents

Child resistant hinge top closure Download PDF

Info

Publication number
EP0345394B1
EP0345394B1 EP88307792A EP88307792A EP0345394B1 EP 0345394 B1 EP0345394 B1 EP 0345394B1 EP 88307792 A EP88307792 A EP 88307792A EP 88307792 A EP88307792 A EP 88307792A EP 0345394 B1 EP0345394 B1 EP 0345394B1
Authority
EP
European Patent Office
Prior art keywords
closure
cover cap
skirt
wall
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88307792A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0345394A1 (en
Inventor
Ned J. Smalley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BPrex Healthcare Brookville Inc
Original Assignee
Owens Illinois Closure Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Owens Illinois Closure Inc filed Critical Owens Illinois Closure Inc
Publication of EP0345394A1 publication Critical patent/EP0345394A1/en
Application granted granted Critical
Publication of EP0345394B1 publication Critical patent/EP0345394B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • B65D50/02—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions
    • B65D50/04—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one
    • B65D50/045—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one where one action elastically deforms or deflects at least part of the closure, the container or an intermediate element, e.g. a ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2255/00—Locking devices
    • B65D2255/20—Locking devices with coacting elements, e.g. ratchet and pawl, formed integrally in the container and closure or dispensing device, e.g. spout, for permanently preventing removal of the latter

Definitions

  • the invention relates to closures for containers, and more particularly to hinge top closures of the dispensing type in which a main closure is installed on a container and includes a hinged cover cap which is manipulated about the hinge connection to the main closure to open or closed position for dispensing product from the container through the closure.
  • plastic dispensing closures include a closure body that is secured to the neck of a container by threading the body onto the neck finish threads of the container.
  • a cover cap is molded with the body and attached by a snap hinge such that the cap is pivoted between an open position for discharging product from the container and a closed position closing the discharge outlet.
  • the hinge is integrally molded from the polymeric plastic of the closure and cap and enables the cap to be pivoted relative to the closure by simple hand manipulation of the user.
  • Typical snap-hinged dispensing closures are disclosed in U.S. Patent Nos. 4,638,916, 4,625,898 and 4,487,324.
  • Prior art closures using a cover cap have incorporated various locking flap features to render them child resistant.
  • An example is disclosed by U.S. Patent No. 4,209,100.
  • Other dispensing closures such as disclosed in U.S. Patent No. 4,595,123, provide means on the main closure attaching it to the container threads to render it non-removable, and, thus provide child resistant, safety closures.
  • Child resistant packages require at least two different manual manipulations by the user to open them; such as a simultaneous push and turn manipulation with one hand holding the container and the other hand pushing down on the closure while turning it in the unscrewing direction. Others require holding the container in one hand while the other hand lifts a part of the closure and simultaneously unscrews the closure from the container. Still others require holding the container in one hand and with the other hand squeezing the skirt from opposite sides and simultaneously unscrewing it from the container. In general, these manipulations require the use of both hands to open the package.
  • FR-A-2380195 discloses a closure according to the preamble of claim 1, except that the tab depends from the skirt of the cover cap rather than being defined by a slot in the cover cap top wall. Depression of the tab portion of this closure results in disengagement of a latch arrangement, enabling the closure to be opened, rather than exposure of a lifting edge as in this invention.
  • GB-A-2101981 discloses a closure according to the preamble of claim 1. However, the radially deformable tab portion is deformed outwardly to form a gripping handle to be grasped to open the closure. This closure is not adapted for one-handed opening.
  • One of the principal objects of this invention is to provide a closure which can be opened with relative ease by an adult.
  • the invention allows the package to be opened using only one hand.
  • This object is achieved by the provision of a closure according to claim 1.
  • the wall of the top cap on the closure is provided with a molded slot at the periphery of the top wall, and axial scores in the sidewall defining a tab may be readily depressed inwardly at or near the juncture of the skirt and top walls using the thumb of one hand to deflect this closure wall area while holding the container in that hand.
  • a lifting ledge is provided to push upwardly by the thumb and lift the cap off the retaining or locking means thereby opening the package for use.
  • the invention is incorporated into a hinged dispensing closure by molding a narrow slot of short length at the outer periphery of the cover cap opposite the hinged connection of the cap with the main closure that is secured on the container.
  • a narrow slot of short length At the opposite ends of the slot are axially extending lines of weakening along the side wall of the cover cap which together define a tab portion. Depressing the wall adjacent and below the slotted area deflects the tab portion inwardly exposing a leverage point to lift the cap by the thumb to release the lock means normally holding the cap closed.
  • ratchets formed on the inside skirt wall of the main closure below the threads. Corresponding ratchet projections are formed on the container below its threaded finish. This provides a second lock means securing the main closure on the container against unscrewing and removing it. The ratchets when engaged after screwing the main closure on the container lock the closure against easy removal from the container and provide the child resistance feature of the entire package.
  • Another object of a preferred embodiment of the invention is to provide the child resistant closure including the one hand operational design that is lightweight and easily molded by existing technique and molding equipment, and is, therefore, economical to manufacture.
  • the lock means incorporates a snap ring bead on the cover cap interengaging the spout of the dispensing main closure when the cover cap is closed.
  • the main closure also includes a radial shoulder or ledge that seats the free bottom edge of cover cap skirt when closed such that a lifting surface or edge at the skirt is not accessible. The only access to lift the cover cap is, therefore, by depressing the cover cap wall to deflect the tab and create a surface for lifting the cover cap and releasing the lock means for opening the package. After the tab is deflected and broken free along the side wall, the package now has an indication that it has been opened, thereby providing a tamper indicating feature.
  • the preferred embodiment of the invention has as a further object to provide a child resistant, tamper indicating closure which is safe against opening by small children, yet is readily operable for opening by adults, including senior citizens, who may otherwise be limited in dexterity in their hands.
  • FIG. 1 is a top plan view of a dispensing closure incorporating the present invention, and showing the cover cap in open position.
  • FIG. 2 is a sectional elevational view of the dispensing main closure body and cover cap taken along line 2-2 on FIG. 1.
  • FIG. 3 is an enlarged fragmentary elevational view of the dispensing closure of FIG. 2 mounted on the neck of a container showing the cover cap closed on the main closure.
  • FIG. 4 is a three-quarter front prospective view of the dispensing closure of FIG. 2 showing it secured on a container as it appears prior to first opening of the package.
  • FIG. 5 is a three-quarter front prospective view like FIG. 4 in which the top cap is being pivoted to open position.
  • a dispensing closure in accordance with the present invention is threaded shown on the neck 12 of a container.
  • Closure 11 is molded of a plastic material, such as polypropylene, and comprises a main closure 13 comprised of a top wall 14 and downwardly depending annular skirt 15. Internal threads 16 are molded on the skirt 15, which are engaged with corresponding threads 17 on the exterior of the circular neck 12 of the container.
  • the skirt 15 and top wall 14 of the closure body are joined and provide an annular radial ledge 18 that is defined in its inward extent by the annular ridge 21.
  • a tubular spout 19 extends from the exterior of the top wall 14 and terminates at a circular rim 20 that includes a chamfer and interior bead 22.
  • the rim 20 defines a dispensing orifice 20a connected to the interior of the container through the spout 19.
  • a cover cap 23 is molded integrally with body 13 and includes a top wall 24 joined to peripheral skirt 25 at a corner radius 25a.
  • the shoulder 18 is engageable with the free edge 26 of skirt 25 when the cover cap is in a closed position.
  • a circular wall 27 depends downwardly from the inner surface of top wall 24 defining a hollow plug that is adapted to fit inside spout 19.
  • the cap 23 swings into and out of closed position on spout 19.
  • the chamfered rim 20 guides wall 27 by its chamfer surface 27a into the opening of spout 19.
  • the rib 22 provides a friction fit for inner wall 27 to insure a good seal for contents of the container, e.g.
  • wall 27 cleans the spout 19 of material poured through the orifice in the rim area.
  • the friction fit of rib 22 and inside surface of the wall 27 also provides a locking means securing the cover cap on the closure body in a closed position.
  • the radial ledge 18 on the top periphery of the main closure 13 corresponds with and underlies the free edge 26 of the cover cap skirt 25.
  • An integral hinge 30 has its upper surface in the plane of radial ledge 18 of the closure body and the free edge 26 of the skirt of the cover cap. The hinge action is about the thin central section along the span of hinge 30 (FIG. 2).
  • Hinge straps may be provided (not shown) between the perimeter surface of skirt 15 of the main body and the skirt of the cover cap. The straps, if proportioned so they stretch in operation during both opening and closing the cover cap on the main closure, provide a snap hinge action with the characteristics of a "live hinge" for the closure's cap. This snap hinge construction is more fully shown and described in U.S. Patent No.
  • the cover cap 23 when closed, as shown on FIG. 3, fits the edge 26 of the cover cap skirt in annular abutment with the radial ledge 18 of the main closure.
  • the tamper indicating opening means of the invention comprises a curved slot 28 molded over a short distance in the region of radius 25a at the juncture between the top wall 24 and the skirt 25 of the cover cap 23.
  • the slot follows the circular contour of the corner radius of the cap directly opposite hinge 30, for but a short span, on the order of 19.1 to 25.4 mm (three-quarters inch to one inch) in length.
  • the slot 28 is narrow, i.e. molded as approximately 0.79 mm (1/32 inch) wide. From the end extremities of slot 28 to near tee edge 26 of the skirt, there are two score lines 28a which are axially extending through the skirt and approximately parallel to each other.
  • the score lines 28a are molded on the inside surface of cap 23 so that they are virtually invisible and the lines 28a provide a weakened line in the skirt 25 and radius 25a that will together with slot 28 define an upright tab portion T of the cap skirt which may be readily ruptured and deflected inwardly by manual pressure P of the user's thumb. Some indicia (see arrow on FIG. 4) will advise the user of the pressure point to rupture and deflect the tab T. As is illustrated, it is preferable the axial score lines 28a run short of the lower edge 26 of the cap skirt to provide a hinge connection 28c for the lower end of tab T on the shirt 25. This hinge 28c is illustrated on FIG. 5. As is shown on FIG.
  • the ring 21 also serves as a fulcrum to assist in deflecting tab T portion of skirt wall 25 assuring that the edge surface at slot 28 will be exposed, that is, the maximum deflection of the skirt wall will occur at this most remote point from the lower fulcrum on the edge of the skirt.
  • the main closure 13 is made child resistant by the ratchet teeth 31 at the lower region of the skirt IS below threads 16.
  • the ratchets of the closure will mesh with similar and corresponding ratchet teeth 32 located below the threads 17 of the container.
  • main closure 13 is screwed on the threads of the container until the annular seal ring 33 seats on the top of the rim 12a.
  • the ratchet teeth 31 are sloped in the direction for applying the closure and ride over the complementary ratchet teeth 32 of the container. When the main closure is fully applied, rotation in the opposite direction for removing it from the container is prevented by the radial surfaces of the respective ratchet teeth engaging thereby locking the closure against further rotation for removal from the container.
  • the ring 21 on the top wall 14 of main closure 13 prevents prying or biting the lower free edge of skirt 25.
  • the ring backs up the skirt around its peripheral extent to prevent inwardly deflecting it at the level of its lower free edge.
  • ring 21 prevents pushing the skirt inwardly for prying it off from its lower edge.
  • the arcuate stub wall 29 formed along the extent of the length of slot 28 reinforces the top wall 24 to make it more rigid adjacent and along the length of slot 28 preventing its collapse when pressure P is applied for opening the package.
  • the user may hold the container 12 in one hand and apply inwardly directed thumb pressure, as indicated at the arrow P.
  • This pressure deflects the skirt wall tab inwardly in the region below slot 28 exposing an edge of the cover cap at the wall 29 for sequentially applying upward pressure by the thumb sufficient to disengage the friction lock between the bead 27a on the inner spout wall 19 and the exterior of the plug wall 27.
  • the closure utilizes a spring hinge construction, such as indicated hereinabove, the cover cap will be opened easily with the energy stored by tension of the hinge straps. Should the closure not use a spring hinge, continued pressure applied by the thumb will rotate the cap about the hinge to an open position (see FIG. 2) such that the package contents may be dispensed and used.
  • any form of closure for adaptation to the neck of the container may utilize the invention in which a section of the skirt of the cap may be deflected to release the locking means on the closure which secured it onto the container finish.
  • the basic operation of the closure is designed to work in one of two modes.
  • the first of these by deflecting and breaking the tab section of the skirt of the cover cap while seated on the closure, the area adjacent the narrow slot in the top wall exposes an edge for lifting the cap and releasing the internal locking means.
  • the cover cap including a locking edge or hook at the periphery of the skirt engages a radially inwardly protruding ledge on the main closure, and the skirt wall section at the lock is deflected inwardly to release the lock. This will also allow the user to easily pry the cap open with thumb pressure.
  • closure illustrated in the drawings utilizes the concepts or principles of the invention set forth in the appended claims. Those familiar with the art of manufacturing and utilizing closures will appreciate these concepts can be employed in a variety of closures which differ from the closure illustrated herein as to matters within the scope of ordinary skill in the field.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP88307792A 1988-06-10 1988-08-23 Child resistant hinge top closure Expired - Lifetime EP0345394B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US206163 1988-06-10
US07/206,163 US4821898A (en) 1988-06-10 1988-06-10 Child resistant hinge top closure

Publications (2)

Publication Number Publication Date
EP0345394A1 EP0345394A1 (en) 1989-12-13
EP0345394B1 true EP0345394B1 (en) 1993-11-10

Family

ID=22765245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88307792A Expired - Lifetime EP0345394B1 (en) 1988-06-10 1988-08-23 Child resistant hinge top closure

Country Status (9)

Country Link
US (1) US4821898A (es)
EP (1) EP0345394B1 (es)
JP (1) JPH0764360B2 (es)
AU (1) AU585756B1 (es)
CA (1) CA1309063C (es)
DE (1) DE3885608T2 (es)
ES (1) ES2046305T3 (es)
MX (1) MX165379B (es)
ZA (1) ZA886283B (es)

Families Citing this family (32)

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Publication number Priority date Publication date Assignee Title
DE3813583A1 (de) * 1988-04-22 1989-11-02 Ver Glaswerke Gmbh Rotations-tampondruckmaschine zum bedrucken des randes von autoglasscheiben
US4991730A (en) * 1989-09-12 1991-02-12 Pehr Harold T Captive key release closure structure
US5092493A (en) * 1989-09-12 1992-03-03 Pehr Harold T Captive key release closure structure
JPH03111960U (es) * 1990-03-03 1991-11-15
US5246145A (en) 1990-05-03 1993-09-21 Nalge Company Liquid dropper spout having lockable pivoted closure cap
US5328058A (en) 1990-05-03 1994-07-12 Nalge Company Dropper bottle assembly with squeeze cap
US5143234A (en) * 1991-08-12 1992-09-01 Zeller Closures, Inc. Single walled dispensing closures with positive alignment means
US5284264A (en) * 1992-09-03 1994-02-08 Aptargroup, Inc. Toggle-action dispensing closure with slide lock
US5348201A (en) * 1993-04-20 1994-09-20 Kerr Group, Inc. Flip top closure
JP3276532B2 (ja) * 1995-05-16 2002-04-22 株式会社ニフコ 容器用キャップ
DE19531341A1 (de) * 1995-08-25 1997-02-27 Zeller Plastik Koehn Graebner Verschluß
US5765705A (en) * 1996-07-30 1998-06-16 Poly-Seal Corporation Child resistant closure
FR2756261B1 (fr) 1996-11-22 1998-12-31 Nord Est Dev Bouchon a charniere, monopiece, pour bouteille a bague faisant office de verseur
US6003660A (en) 1999-03-24 1999-12-21 Foster; Raymond Keith Drive units and drive assembly for a reciprocating slat conveyors
US6431380B1 (en) 1999-10-21 2002-08-13 Rexam Medical Packaging Inc. Child-resistant flip top closure
US6631820B2 (en) * 2000-12-22 2003-10-14 Seaquist Closures Foreign, Inc. Tamper-evident dispensing closure with partial breakaway cover
US6763960B2 (en) 2002-07-16 2004-07-20 Delta Plastics, Inc. Child resistant closure and container
US6854619B2 (en) * 2002-10-18 2005-02-15 Summit Packaging Systems, Inc. Flip-top closure with child resistant packaging system
US7712618B2 (en) * 2004-07-20 2010-05-11 The Zebra Company Container cap with locking/unlocking mechanism that propels lid to open position
US7510095B2 (en) 2005-03-11 2009-03-31 Berry Plastics Corporation System comprising a radially aligned container and closure
US7798348B2 (en) * 2005-12-02 2010-09-21 Berry Plastics Corporation Child-resistant closure
US20080245795A1 (en) * 2007-04-05 2008-10-09 Berge Gary L Auto open closure
US7900789B2 (en) * 2007-05-30 2011-03-08 Graham Packaging Company, Lp Non-removable finish and closure system
NZ593323A (en) * 2008-12-10 2014-02-28 Raymond John Baker Secure closure
WO2011038419A1 (en) * 2009-09-28 2011-03-31 Lok Top, Llc Locking top for containers
CN102249036B (zh) * 2011-07-06 2013-01-02 佛山市南方包装有限公司 防漏防盗翻盖式瓶盖
WO2013187782A1 (en) * 2012-06-15 2013-12-19 Rml Engineering Limited Tamper evident container
CN102951358A (zh) * 2012-11-22 2013-03-06 中山环亚塑料包装有限公司 一种止逆扣位式瓶
WO2015128071A1 (en) * 2014-02-28 2015-09-03 Silvia Ferrari Reclosable stopper revealing a first opening
US10689169B1 (en) 2019-06-19 2020-06-23 Packaging Concepts Associates Holding, Inc. Child-resistant flip-top closure and locking system for a container
US11040809B1 (en) 2020-10-09 2021-06-22 Packaging Concepts Associates Holding, Inc. Push button tilt top closure and locking system for a container
DE102022104798A1 (de) * 2021-03-01 2022-09-01 Z-Werkzeugbau-Gmbh Verschluss

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US3702165A (en) * 1971-07-28 1972-11-07 Us Cap & Closure Inc Child-proof dispensing closures
DE2805046A1 (de) * 1977-02-10 1978-08-17 Createchnic Patent Ag Kunststoffverschluss fuer feste und deformierbare behaelter
DE2828065A1 (de) * 1978-06-27 1980-01-10 Wischerath Kg Josef Kunststoff-deckelverschluss fuer behaelter, insbesondere fuer verpackungszwecke
US4209100A (en) * 1979-06-01 1980-06-24 Owens-Illinois, Inc. Safety closure
US4236653A (en) * 1979-07-30 1980-12-02 Sunbeam Plastics Corporation Child-resistant dispensing closure
DE3064628D1 (en) * 1979-07-30 1983-09-29 Sunbeam Plastics Corp Child-resistant dispensing closure
US4378073A (en) * 1981-07-01 1983-03-29 Sunbeam Plastics Corporation Tamper indicating closure
GB8427925D0 (en) * 1984-11-05 1984-12-12 Johnsen Jorgensen Plastics Ltd Child-resistant closure
US4638916A (en) * 1985-07-12 1987-01-27 Owens-Illinois, Inc. Closure with snap-type hinge cap
DE3632057A1 (de) * 1985-12-14 1987-06-25 Vedder & Comp Gmbh Verschluss
GB8625169D0 (en) * 1986-10-21 1986-11-26 Duma Packaging As Closure assembly
US4723669A (en) * 1987-01-09 1988-02-09 Owens-Illinois Closure Inc. Child resistant dispensing closure system
US4776475A (en) * 1987-04-01 1988-10-11 Polytop Corporation Child resistant dispensing closure
US4759455A (en) * 1987-04-29 1988-07-26 Polytop Corporation Child resistant closure with deformable panel
US4752013A (en) * 1987-11-27 1988-06-21 Miller Jack V Tamper-evident child-resistant cap and bottle with axial locking means
US4752014A (en) * 1987-12-16 1988-06-21 Poly-Seal Corporation Tamper-evident child-resistant closure and container with same

Also Published As

Publication number Publication date
AU585756B1 (en) 1989-06-22
EP0345394A1 (en) 1989-12-13
CA1309063C (en) 1992-10-20
MX165379B (es) 1992-11-06
JPH024653A (ja) 1990-01-09
DE3885608D1 (de) 1993-12-16
US4821898A (en) 1989-04-18
DE3885608T2 (de) 1994-03-03
ZA886283B (en) 1989-05-30
JPH0764360B2 (ja) 1995-07-12
ES2046305T3 (es) 1994-02-01

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